Earth Orientation Parameters from VLBI and GNSS Combined at the Observation Level

Jean-Yves Richard1, Sébastien Bernard Lambert1, Christian Bizouard2, Daniel H Gambis2, Olivier Becker3 and Christian Bizouard4, (1)SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, LNE, Paris, France, (2)Paris Observatoiry, SYRTE, PSL Research University, CNRS, Sorbonne Universites, UPMC Univ, Paris 06, LNE, PARIS, France, (3)Paris Observatoiry, SYRTE, PSL Research University, CNRS, Sorbonne Universites, UPMC Univ, Paris 06, LNE, Paris, France, (4)SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, LNE, Paris, France